Whenever the ignition is on and the PCM is energized, EEPROM self-tests are initiated. In addition to running internal controller self-tests, the controller area network (CAN) also compares signals from each individual module to ensure that each controller is functioning properly. These tests are performed simultaneously. If the PCM detects discrepancies in EEPROM functionality, a code P062F will be stored and a malfunction indicator lamp (MIL) may be illuminated. Additionally, if the PCM detects a problem between any of the on-board controllers, which would indicate an internal EEPROM error, a code P062F will be stored and a malfunction indicator lamp (MIL) may be illuminated. Multiple failure cycles may be necessary for MIL illumination, depending upon the perceived severity of the malfunction.
Causes for this P062F DTC code may include:
Defective controller or programming error, Overheated PCM, Water damage, A bad controller power relay or blown fuse, Open or shorted circuit or connectors in the CAN harness Insufficient control module ground Faulty EEPROM.
SOURCE: malibu air bag module location
The module is under the passenger side seat,under the carpet.You will have to remove the seat to access it easier.Lift up the carpet and it will be mounted to the floor.
SOURCE: what does po601 pcm internal fault means
Please refer to this site for details:
http://www.aa1car.com/library/pcm.htm
SOURCE: 601 code ..internal control module memory check
It means the PCM (computer) is toast. Replace it with one from a wrecking yard if available.
SOURCE: Internal Control Module Keep Alive Memory (KAM)
P0603 means Internal Control Module Keep Alive Memory (KAM) Error
In other words, that code is set when the PCM loses "keep alive" memory B+.
This code can also be set if the batteries went dead at some point, but
mainly it means there is an open circuit detected in the KAM circuit.
On a '97 F-250, check for a 5 amp fuse blown in fuse cavity #2. If the
fuse is blown, check for and repair the short-to-ground in circuit #729
(red with white coloured wire).
Good luck dear.
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SOURCE: 2003 Chev Malibu.V6, loaded: HVAC: control head
under the dash on the right side ,look for a plug with 5 wires . That switch is called a RHEOSTAT.(fan speed control).Sounds like it is defective
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